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Lower Bound of Image Correlation Coefficient as a Measure of Image Quality
Bongsoon KANG Hoongee YANG
IEICE TRANSACTIONS on Communications
Publication Date: 1998/04/25
Print ISSN: 0916-8516
Type of Manuscript: Category: Antennas and Propagation
correlation, beamforming, phased array, radio camera, DSA, ABF,
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This letter derives the theoretical lower bound on image correlation coefficient that judges the extent of image degradation. It is shown that the correlation coefficient depends on phase-error variance in antenna aperture domain. Thereby, one can predict image quality before image formation. The theoretical bound is verified by experimental data where the dominant scatterer algorithm (DSA) is used for phase synchronization.